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2 years ago

Help pls!!

Mathematics

1 answer:

leva [86]2 years ago

5 0

Answer:

$\pi \times {r}^{2}$

hope this answer will help you

have a great time

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The angles in a triangle have<br><br> measures of 61°, (3z), (z-5)<br><br> What is the value of z?

vfiekz [6]

Answer:

z = 31

Step-by-step explanation:

A triangle adds up to 180 degrees

Therefore this equation is formed: 61 + 3z + z -5 = 180

Simplify:

4z = 124

z = 31

5 0

2 years ago

The number 2.31 x 10 to the power of x is 2,200 times greater than 1.05 x 10 to the power of y.

Goshia [24]

Answer:

x - y = 3

any values of x& y where x is three greater than y

I.E. x = 8 y = 5

Step-by-step explanation:

8 0

3 years ago

Name four angles whose tangent equals 0.

ehidna [41]

Answer:

The answer is C. Hope this helps!

8 0

3 years ago

HELPPPPP ME GUYSSSS........

tamaranim1 [39]

Answer:

$\rm\displaystyle (x + 2{)}^{2} + (y + 5 {)}^{2} = {1}^{}$

$\rm\displaystyle (x - 7{)}^{2} + (y + 3{)}^{2} = { 7 }$

Step-by-step explanation:

<h3>QUESTION-1:</h3>

we are given the center and the redious of a circle equation

remember that,

$\rm\displaystyle E _{c} :(x - h {)}^{2} + (y - k {)}^{2} = {r}^{2}$

where (h,k) is the centre coordinate and r is redious of the circle

given that, h=-2 , k=-5 and r=1

Thus substitute:

$\rm\displaystyle (x - ( - 2){)}^{2} + (y - ( - 5) {)}^{2} = {1}^{2}$

simplify:

$\rm\displaystyle (x + 2{)}^{2} + (y + 5 {)}^{2} = {1}^{}$

<h3>QUESTION-2:</h3>

Likewise

$\rm\displaystyle E _{c} :(x - h {)}^{2} + (y - k {)}^{2} = {r}^{2}$

given that,h=7,k=-3 and r=√7

substitute:

$\rm\displaystyle (x - (7{))}^{2} + (y - ( - 3){)}^{2} = { \sqrt{7} ^{2} }$

simplify:

$\rm\displaystyle (x - 7{)}^{2} + (y + 3{)}^{2} = { 7 }$

5 0

2 years ago

PLEASE HELP FAST!!!!!!!!!!!

san4es73 [151]

Answer:

First expression 8y +4x +10

Second expression 7x-3y +6

If you want to combine both expressions: 5y +11x +16

Step-by-step explanation:

Like terms are the terms which have same variables and powers/roots.

Example: 7x and 2x are like terms because the variables are both "x". So we can combine in 9x

In an expression, only like terms can be combined. We combine like terms to shorten and simplify algebraic expressions, so we can work with them more easily. To combine like terms, we add the coefficients and keep the variables the same

10y + 3x + 10 + x -2y

10y-2y=8y 3x+x=4x

so 8y +4x +10

3x - y + 4x + 6 - 2y

3x+4x=7x -2y -y = -3y

so 7x-3y +6

4 0

3 years ago